Answer:
It will be better to buy the national brand cornflakes as it is less costlier.
Step-by-step explanation:
A box of national brand cornflakes is $2.09 for 12 ounces.
So, per ounce cornflakes of national brand costs [tex]\frac{2.09}{12} = 0.174[/tex] dollars.
Now, if I have a 15% off coupon for the national brand, then the per-ounce cost for national brand cornflakes will be [tex]0.174(1 - \frac{15}{100}) = 0.148[/tex] dollars.
It is given that a box of store label cornflakes is $3.09 for 20 ounces.
Then the per-ounce cost for store label cornflakes will be [tex]\frac{3.09}{20} = 0.154[/tex] dollars.
Therefore, it will be better to buy the national brand cornflakes as it is less costly. (Answer)
